We are looking to purchase a reliable coffee machine for our office in the UK that can handle daily use by multiple employees. Our key requirements include ease of use, quick brewing time, the ability to make a variety of coffee types (espresso, cappuccino, latte, etc.), and low maintenance. We would also prefer a machine with a large water reservoir and a good warranty/service support in the UK. Can you recommend some top options within a reasonable budget, and what factors should we consider when choosing the best model for our needs?